Improvement in plows



F.M.FRANKLIN.

Plow.

Patented Sept.20,1870.

No.10l606.

.[111 v QVYUTTOY,

GRAPHER. WASHINGTON, lf'.

UNTTED STATES y PATENT Ormea FRANCIS M. FRANKLIN, OF SPRINGFIELD, OHIO, ASSIGNOR TO HIMSELF AND ASAI-IEL FRANKLIN, OF SAME PLACE.

IMPROVEMENT IN- FLOWS.

Specification forming pali of' Letters Patent No. It 7,606, dated September' 20, 1570.

To @ZZ whont t may concern.'

Be it known that I, FRANcIs M. FRANKLIN,

of Springfield, in the county of Clarke, and in the State of Ohio, have invented certain new and useful Improvements in Flows; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being had to the acccompanying drawings, and to the letters of reference marked thereon, making a part of this specification.

The object of my invention is to construct a mold-board of a plow by a varying or an adj ustable rule,to produce a shape or form on the working-surface so that their changes will be after the form of an inclined plane for either a sod-plow or a loose-ground plow which will in the greatest degree abate the resistance reysulting from friction, and to effect perfect turning of the furrow and scouring of the working surface of the mold-board, including in my invention rules and direct-ions to be observed in working out the same.

Another part of my invention is the construction ofthe top part of a sheath or standard to my plow, and the attachment of the brace to it, which is to strengthen it, and in all is to make it more substantial for the changes which are made by hitching from two to three horses to the plow, in which I claim this part ofthe sheath or standard an improvement over the one patented by me, No. 91,109, dated .I une 8, 1869; antedated May 24, 1869.

In order to enable others skilled in the art to which my invention appertains to make and use the same, I will now proceed to describe its construction and operation, referring to the annexed drawings,'in which Figure lis a plan View, and Fig. 2 side view, of the mold-board. Fig. 3 is a side view of a portion ofthe plow-beani,with the upper end of the sheath or standard,-and Fig. 4. is a front View of the same. Fig 5 is a diagram showing the manner of laying oft' the mold-board.

An oblong block of wood is formed about three feet and nine inches long, and twelve inches wide at the front end, and about thirteen inches wide at the rear end, and about fourteen inches high. In order to work out the same, it is done by lines. 1 is the righthand baseline; 2, the left-hand base line, and 3 the front-end line, which projects on the side ofthe line 1 about five inches and a half to the point A. 4is the rear-end line, which projects on the side of line 2 about four inches and a half to the point B, and then another point is made on line 4C three inches and a half from line 2 at C. On iine 3 another point, D, is made, two and a quarter inches from line 1. A line, H, is drawn from A to B, cutting line 1 at F and line 2 at P, and another line, L, vis drawn from D to C, cutting line 1 at E and line 2 at I), all as shown in diagram,Fig. 5. Line 2 is divided off in about,eighteen spaces, each being about two inches and a half. Onthe rear portion of the block from which the moldboard pattern is made are fastened additional pieces sufficient to meet a perpendicular line rising from B to a pointabout tenwinches and a half high, and from that point aline, H, passes to a point ab'out two inches and threequarters high on a perpendicular line rising from F on line 1; and on a perpendicular line rising from C about eight inches and a half high a line, L, passes to apoint about one inch land a quarter high on a perpendicular line rising from E on line 1. The lines H and L are cut in to fit a straight edge. Then lines are vcut in at right angles across the block into and near lines H, and L to work the surface by, and then a line, G, is drawn or cut on what is to be finished as the working-surface, starting at line 3, near its intersection with line 1, followj ing around tothe rear, measuring everywhere twelve inches from line 2. This line G is d1- vided off in about lsixteen spaces, each being about three inches and a quarter. Lines are then drawn or cut in from the directions of the 'divisions on line 2, in to touch or cut both lines H and L, and to the divisions on line G, the first or front line starting one space in ad.- vance on line 2, as shown in Figs. 1 and 5. The surface is then worked down to these lines H and L and their intersecting linesr A small portion of the share in the rear end of the wing is concaved. In order to make the concave portions go off at atangent from the surfacev above it, the surface is cut to fitastraight edgeappliedin the direction of lino R. (Shown in Figs. l and 2.)

The curved line T shows where the moldboard and share join together, which joint is everywhere two inches high from the bottom I of the same plane of the plow. The dotted line shows the shape of the bottom part and rear portion ofthe mold-board, which is perpendicular opposite P on line 2.

It will be seen that by varying the front ends of either or both lines H and L, and their crosslines with them, either to the right or left, up

" or down, the plow ormold-board will have cross-lines with theni, it would be a shorter plow,which would be suitable for loose ground.

A rule is thus furnished by which to finish or form the working-surface of a plow, which rule can be varied to suit asod-plow or alooseground plow, either long or short. -A moldboard and share tinished by this rule will be a combined surface, after the form of an inclined plane, and increases convex from the middle ofthe mold-board toward the rear end.

S represents the upper portion of the sheath or standard, the end `ot' which is forked, forming, as it were, a letter U, as shown in Fig. 4. The prongs of said U-shaped portion or end of the sheath S are wide enough apart to admit of all the variations of the beam and draft- 'rod that will be necessary for either two or three horses. The block X fits neatly between thetwo prongs, near the' upper ends, and is bolted in between them, as shown in the drawings.l The said block is curved so as to form the are ot' a circle the diameter of which is equal totwice the distance from where it rests against the plow-beam O to the regulating upright screw a, as shown in my former patent above referred to. It is also made with notches in its upper surface, to receive the projections ofthe plate V. The rear part of the block X is also rounded on, to better accommodate the proper arrangement ofthe draft-rod N. The

plate V is constructed so that it will have proloc/,cos

jections on the under side to flt the ratchet or notchesin the block X, and with a flange on each side for better security in fastening to the beam O; also, have holes in each end, the

lrear hole to admit the draft-rod N as it passes 'ping whenscrewed fastv by the nuts on the draft-rod and eyebolt on top of the beam O. Below the prongs of the sheath S a brace, I, is bolted to the shank on the rear side of the standard, running diagonally from the said standard or sheath, and is bolted to the landsidef bar of the share or to the landside-handle, in my former patent, the whole of saidstandard or sheath to be construetedot' metal suitable for the purpose. It is readily seen that this form' of standard, with its accompaniments, is constructed so that the beam O, when placed properly on the block X and fastened `at the rear end, as shown in my Patent No.

91,109, will admit of all the variations necessary for either increasing` or diminishing the dept-h and width of the furrow for either two or three horses, and also lessening t-he draft oil the plow.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. The method or rule herein described for laying off the mold-board and share of a plow, substantially as herein set forth.

2. The arrangement of the standard S, block X, draft-rod N, eyebolt a., plate V, andbeain O, all constructed as described, and operatingI as and for the purposes herein set forth.

In testimony that I claim the foregoing l have hereunto set my hand and seal this 9th day ot' November, 1869.

FRANCIS M. FRANKLIN. [L s] WVitnesses:

J. XVARREN Kerri-zn',

l. OcLiizvinz. 

